/Engine/Source/Editor/UnrealEd/Classes/Builders/CurvedStairBuilder.h
class UCurvedStairBuilder : public [UEditorBrushBuilder](API\Editor\UnrealEd\Builders\UEditorBrushBuilder)
int32
AddToFirstStep
The distance below the first step
int32
AngleOfCurve
The angle of the total arc described by this stair
uint32: 1
CounterClockwise
Whether the stair curves clockwise or counter-clockwise
FName
GroupName
int32
InnerRadius
The radius of the inner curve of the stair
int32
NumSteps
The number of steps
int32
StepHeight
The height of each step
int32
StepWidth
The width of each step